J Korean Acad Pediatr Dent.  2018 Nov;45(4):445-454. 10.5933/JKAPD.2018.45.4.445.

Shear Bond Strength Comparison of Different Adhesive Systems to Calcium Silicate-based Materials

  • 1Department of Pediatric Dentistry, Kyung Hee University Dental Hospital at Gangdong, Seoul, Korea. juniordent@hanmail.net
  • 2Department of Pediatric Dentistry, School of Dentistry, Kyung Hee University, Seoul, Korea.


The aim of this study was to measure the shear bond strength (SBS) of different adhesive systems to calcium silicate-based materials (Biodentine and RetroMTA). Eighty cylindrical acrylic blocks, with a hole (5.0 mm diameter, 2.0 mm height) in each, were prepared. The holes were filled with Biodentine (BD) and RetroMTA (RMTA), and the specimens were divided into 2 groups. Each group was classified into 4 subgroups: Clearfilâ„¢ SE (CSE) ; AQ bond (AQ) ; All bond universal Self-etch (ABU-SE) ; and All bond universal Total-etch (ABU-TE). After the application of different adhesive systems, composite resin (Z350) was applied over BD and RMTA. The SBS was measured using a universal testing machine, and the data were compared using the Kruskal-Wallis test and the Mann-Whitney test. The highest and lowest values of SBS were observed for BD-ABU-SE and RMTA-AQ, respectively. No significant differences were found in the SBS between ABU-TE and ABU-SE and between ABU-TE and CSE to BD and RMTA. According to the data, BD showed a higher SBS than did RMTA when BD and RMTA are compared in the same adhesive agents. Further, among all groups, composite resin with ABU-SE showed better bond strength to BD and RMTA.


Calcium silicate-based materials; Biodentine; RetroMTA; Dentin adhesive; Self-etch adhesive system; Shear bond strength; Failure modes

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